Description
3.10 OCPP backend
SICHARGE D
Operating Instructions, 02/2021, 8EM5907-0AA00-1AA7.01
39
•
Over-the-Air Update
–
Provision of fail-safe software updates to the charging station
–
Inclusion of all components that can be updated (router, PLC, charge controller,
application board)
•
Remote maintenance access for emergencies
–
For emergencies, Siemens makes secured SSH access available after activation in the
Configuration Backend
–
Access is logged
3.10
OCPP backend
The operator backend is a management system with a lower scope of functions than the
Configuration Backend. But not all functions from the OCPP backend are relevant in the
Configuration Backend, which means not all functions can be implemented here. The
charging station fulfils the specification according to OCPP 1.6j+. You can find all details on
this protocol at the following link: (
https://www.openchargealliance.org/downloads/
The display and wording of the various functions may differ depending on the OCPP backend
used. Contact Siemens Support if you have questions about the compatibility of your
backend.
The following messages with corresponding functions from the two profiles Core and
Local Auth List Management are supported by the charging station.
Table 3- 9
Message with corresponding functions
Message
Function
Authorize
Organize authorizations for starting or ending a charging process
BootNotification
Query information on the configuration of the device
ChangeConfiguration
Make change to configured parameters
Clear Cache
Clear authentication cache
DataTransfer
The charging station can be expanded by functionalities that are not
defined in the OCPP. These must be implemented as specific adaptation
to your system.
GetConfiguration
View set parameters of the configuration
Heartbeat
Query readiness for operation
MeterValues
Query meter values
RemoteStartTransaction
Start a charging process via remote access
RemoteStopTransaction
End a charging process via remote access
StartTransaction
Notification on the start of a charging process
StatusTransaction
Query status of the charging port
StopTransaction
Notification about the end of a charging process
GetLocalListVersion
Output of the authorization list saved locally in the charging station
SendLocalList
Overwriting the local authentication list
Other functions may be added with updates